bpo-23057: add loop self socket as wakeup fd for signals (#11135)

Lib/test/test_asyncio/test_windows_events.py

@@ -1,6 +1,9 @@
 import os
+import signal
 import socket
 import sys
+import subprocess
+import time
 import unittest
 from unittest import mock
 
@@ -13,6 +16,7 @@ import _winapi
 import asyncio
 from asyncio import windows_events
 from test.test_asyncio import utils as test_utils
+from test.support.script_helper import spawn_python
 
 
 def tearDownModule():
@@ -33,6 +37,23 @@ class UpperProto(asyncio.Protocol):
             self.trans.close()
 
 
+class ProactorLoopCtrlC(test_utils.TestCase):
+    def test_ctrl_c(self):
+        from .test_ctrl_c_in_proactor_loop_helper import __file__ as f
+
+        # ctrl-c will be sent to all processes that share the same console
+        # in order to isolate the effect of raising ctrl-c we'll create
+        # a process with a new console
+        flags = subprocess.CREATE_NEW_CONSOLE
+        with spawn_python(f, creationflags=flags) as p:
+            try:
+                exit_code = p.wait(timeout=5)
+                self.assertEqual(exit_code, 255)
+            except:
+                p.kill()
+                raise
+
+
 class ProactorTests(test_utils.TestCase):
 
     def setUp(self):